Toolhub for Schools

Toolhub for classrooms

Toolhub is a set of small in-browser tools that students can use without creating an account, without being tracked, and without being redirected to ads or affiliate funnels. Every tool runs entirely in the browser, which means student input never leaves the school network — there is no backend to call.

If you teach in a primary, secondary or tertiary setting and need a quick utility (a regex tester, a colour converter, a Base64 encoder, a password generator for a security lesson), Toolhub is built to be safe to put on the projector and safe to send to a class.

Curriculum tie-ins

• Computer science: the regex tester for pattern matching, the Base64 encoder for data lessons, the hash generator for talking about integrity, the CIDR calculator for networking units.
• Design and digital media: the colour converter and colour picker for talking about colour models, the WCAG contrast checker for accessibility.
• Security awareness: the password generator for talking about entropy and password strength, the JWT decoder for showing what's actually inside a token.
• Maths and health: the percentage calculator, unit converter, and BMI calculator (the BMI page carries its own "not medical advice" notice).

Languages supported

Every tool is translated into nine languages so students can work in their first language:

• English
• Deutsch (German)
• Español (Spanish)
• Français (French)
• Italiano (Italian)
• Português (Portuguese)
• Polski (Polish)
• 日本語 (Japanese)
• Nederlands (Dutch)

Self-hosted option

If your school network blocks external sites or you'd rather have full control, the entire site is around 5 MB and works offline as a Progressive Web App. You can mirror it on a school intranet — it's a static folder of HTML, CSS and JavaScript with no build step required to serve, just put the files behind any web server.

The full source is at https://github.com/JXXR1/Toolhub.

Filter-friendly

Toolhub is designed to play nicely with school web filters:

• No embedded social media widgets.
• No chat widgets or live-chat overlays.
• No auto-redirects to other sites.
• No video or audio that auto-plays.
• SafeSearch-friendly content — no adult tools, no gambling, no crypto-bro affiliate placements.

Contact for educators

If you're using Toolhub in a classroom and want to tell me about it, suggest a tool for your subject, or contribute a translation for a language we don't yet cover well, please get in touch via the contact page. Bulk-translation contributions from native speakers — especially for less-served languages — are very welcome.